TIPM?

Tiny
JASON BEVANS
  • MEMBER
  • 2010 DODGE RAM
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 60,000 MILES
Is the fuel pump fuse (m22) in my truck supposed to have constant 12 volts with the key in the off position?
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No
Sunday, October 14th, 2018 AT 10:15 AM

11 Replies

Tiny
ASEMASTER6371
  • EXPERT
Good afternoon.

Yes, there will be power for the load side of the relay all the time.

Are you having an issue with the fuel pump?
Roy
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Sunday, October 14th, 2018 AT 1:57 PM
Tiny
JASON BEVANS
  • MEMBER
Yeah, the fuel pump is not working.
I have been doing research on the fuel pump circuit for Dodge Rams 2009 - 2017
In the 2011 Dodge Ram the fuel pump fuse (m27) only seems to get power when the key is turned to the on position. The fuel pump relay seems to be a common problem on these trucks, they get stuck open and stop delivering power to the fuel pump fuse (m27).

I thought it would be the same thing in a 2010 Dodge Ram too. But from what your saying, I guess not. So the (m22) fuel pump fuse in a 2010 Dodge Ram TPIM is energized 24/7?
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Sunday, October 14th, 2018 AT 2:16 PM
Tiny
ASEMASTER6371
  • EXPERT
I sent a better picture for you to view.

The PCM controls the ground of the pump but the TIPM controls power to the control side. It sounds like the TIPM is going out which is common. Here are diagrams below to help you change it out which is easy because it self initiates. Check out the diagrams (Below). Please let us know what you find.
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Sunday, October 14th, 2018 AT 2:22 PM
Tiny
JASON BEVANS
  • MEMBER
Thank you so much, this makes more sense now.
So I guess on a 2011 Dodge Ram things must be a little different?
The fuel pump relay feeds power to the fuel pump fuse (m25) instead of the other way around on a 2010 Dodge Ram the (m22) fuse feeds the relay?

Here is the YouTube video I was watching about bypassing the fuel pump relay

https://youtu.be/XPHBReUqsfs

I made a mistake earlier I was calling the fuel pump fuse the (m27) circuit it is actually (m25) in a 2011 Dodge Ram now that I have watched the video again.
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Sunday, October 14th, 2018 AT 3:16 PM
Tiny
ASEMASTER6371
  • EXPERT
Okay, first, you never do that and leave it that way.

Second he used the wrong gauge wire doing that even though he was testing. That could damage the TIPM/

Lastly, he never verified power to the relay for the operation which is what any qualified tech would test first.

Roy
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Sunday, October 14th, 2018 AT 3:27 PM
Tiny
JASON BEVANS
  • MEMBER
Thank you you have been very helpful.
Yeah, all the videos I have been watching say this is not a proper fix by any means.
Proper fix if it is the fuel pump relay is to replace entire TIPM ($1,100.00).
Or repairing TIPM by soldering on a new relay.

So it would seem the fuel pump system between 2010 and 2011 are slightly different.
2010 the fuel pump relay is fed power through the fuse.
2011 the fuel pump relay feeds the fuse power, allowing you to bypass the relay if you really wanted to.
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Sunday, October 14th, 2018 AT 3:38 PM
Tiny
ASEMASTER6371
  • EXPERT
No, the 11 does not feed the fuse. The control side is controlled by the TIPM. The load side is fed from the ignition switch.
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Sunday, October 14th, 2018 AT 3:43 PM
Tiny
JASON BEVANS
  • MEMBER
So the ignition switch does not turn the fuel pump relay on, then give power to the fuse? (M25)
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Sunday, October 14th, 2018 AT 4:23 PM
Tiny
ASEMASTER6371
  • EXPERT
No, the TIPM controls the control side of the relay. The load side power is provided from power from the ignition.

Roy
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Sunday, October 14th, 2018 AT 4:30 PM
Tiny
JASON BEVANS
  • MEMBER
Thank you for answering my questions you have been very helpful. It was the TIPM I wish I listened sooner DOH.
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Sunday, October 14th, 2018 AT 5:39 PM
Tiny
ASEMASTER6371
  • EXPERT
You are welcome.

Always glad to help.

Roy
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Sunday, October 14th, 2018 AT 5:44 PM

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